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Backstage Guardrails - System Set

System Set

✓ Guardrail Backstage Guardrails Beta Repository And Ownership
backstage.system-set

Validates that the system grouping (spec.system) is defined in the catalog-info.yaml. System assignment enables dependency mapping and architectural visibility. Fails if no catalog file is present.

backstage system grouping architecture
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Compatible Integrations

This guardrail works with the following integrations. Click to see how to use System Set with each collector.

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System Set + Backstage Collector Provides parsed Backstage catalog metadata at .catalog.native.backstage
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Enable This Guardrail

Add the parent policy to your lunar-config.yml to enable this guardrail.

📄 lunar-config.yml 
policies:
  - uses: github://earthly/lunar-lib/policies/backstage@v1.0.5
    include: [system-set]
    # with: ...

How This Guardrail Works

This guardrail is part of the Backstage Guardrails policy. It evaluates data collected by integrations and produces a pass/fail check with actionable feedback.

When enabled, this check runs automatically on every PR and in AI coding workflows, providing real-time enforcement of your engineering standards.

Learn How Lunar Works →
1
↓ Integrations Gather Data
Collectors extract metadata from code, CI pipelines, tool outputs, and scans
2
{ } Centralized as JSON
All data merged into each component's unified metadata document
3
✓ This Guardrail Checks Current
System Set runs and provides pass/fail feedback

Related Guardrails

Other guardrails in the Backstage Guardrails policy.

Guardrail Repository And Ownership
Catalog Info Exists

Verifies that a catalog-info.yaml file exists in the repository. Every Backstage-managed service must have a catalog...
Guardrail Repository And Ownership
Catalog Info Valid

Verifies that the catalog-info.yaml file is syntactically valid and passes Backstage descriptor schema checks (no lint...
Guardrail Repository And Ownership
Owner Set

Validates that the owner field (spec.owner) is populated in the catalog-info.yaml. Ownership is required for incident...
Guardrail Repository And Ownership
Lifecycle Set

Validates that the lifecycle stage (spec.lifecycle) is defined in the catalog-info.yaml. Lifecycle stages (production,...
Backstage Guardrails

Backstage Guardrails

This guardrail is part of the Backstage Guardrails policy, which includes 5 guardrails for repository and ownership.

View Policy

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